<template>
  <div class="login-container" :style="'background-image:'+pageBgUrl">
    <vue-particles
      color="#409EFF"
      :particle-opacity="0.7"
      :particles-number="80"
      shape-type="circle"
      :particle-size="4"
      lines-color="#409EFF"
      :lines-width="1"
      :line-linked="true"
      :line-opacity="0.4"
      :lines-distance="150"
      :move-speed="3"
      :hover-effect="true"
      hover-mode="grab"
      :click-effect="true"
      click-mode="push"
    />
    <el-form ref="loginForm" :model="loginForm" class="login-form" :rules="loginRules" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">基于云计算的污染企业提升整治数据追踪监测管理系统</h3>
      </div>

      <el-form-item v-if="loginForm.login_type === 'company'" prop="company_name">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-select v-model="loginForm.company_name" filterable placeholder="请选择企业" class="company">
          <el-option
            v-for="item in companyList"
            :key="item.company_name"
            :label="item.company_name"
            :value="item.company_name"
          />
        </el-select>
      </el-form-item>

      <el-form-item v-if="loginForm.login_type === 'system_account'" prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="账号"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登陆</el-button>
      <el-button type="primary" style="width:100%;margin-bottom:30px;margin-left:0;" @click.native.prevent="changeLoginType">{{ login_type_text }}</el-button>

    </el-form>
  </div>
</template>

<script>
// import { validUsername } from '@/utils/validate'
import pageBg from '@/assets/img/bg1.jpeg'
import { Message } from 'element-ui'
import { getCompany } from '@/api/account'

export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: '',
        password: '',
        company_name: '',
        login_type: 'company'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '请输入账号' }],
        password: [{ required: true, trigger: 'blur', message: '请输入密码' }],
        company_name: [{ required: true, trigger: 'blur', message: '请选择企业' }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined,
      loginType: 'company',
      companyList: [],
      login_type_text: '切换为管理人员登陆'
    }
  },
  computed: {
    pageBgUrl() {
      return `url(${pageBg})`
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.getCompany()
  },
  methods: {
    getCompany() {
      getCompany().then(res => {
        this.companyList = res
      })
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch((error) => {
            Message({
              message: error.response.data.message,
              type: 'error',
              duration: 5 * 1000
            })
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },

    changeLoginType() {
      if (this.loginForm.login_type === 'company') {
        this.loginForm.login_type = 'system_account'
        this.login_type_text = '切换为企业登陆'
      } else {
        this.loginForm.login_type = 'company'
        this.login_type_text = '切换为管理人员登陆'
      }
    }

  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#2d3a4b;
// $bg:rgb(65, 151, 190);
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .company {
    display: inline-block;
    height: 47px;
    width: 90%;

    .el-input {
      width: 100%;
    }

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }

  .footer {
    width: 100%;
    height: 100px;
    text-align: center;
    line-height: 30px;
    color: $light_gray;
    position: fixed;
    bottom: 0;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  #particles-js{
    width: 100%;
  //  height: calc(100% - 100px);
    height: 100%;
    position: absolute;
  }
}
</style>
